Population By Race and Ethnicity in Polk County, IA in 2020

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2020, the 493,022 population of Polk County, Iowa comprised of 48,067 people who identified as Hispanic (9.75%), and 444,955 people who identified as Non-Hispanic (90.25%).

Race: The White Alone population was the largest racial group in Polk County, Iowa with a population of 416,656 (84.51%); Black or African American Alone population was the second largest racial group with a population of 36,053 (7.31%); and Asian Alone was the third largest racial group with a population of 25,335 (5.14%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Polk County, Iowa in 2020, with a population of 372,598 (75.57%); the second largest ethnic group was White Alone - Hispanic with a population of 44,058 (8.94%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 34,947 (7.09%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Polk, Iowa.

You can find similar information for other Iowa counties, and for Iowa.

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Hispanics and Non Hispanics in Polk County, IA in 2020
Total Population:
Race in Polk County, IA in 2020
Total Population:
Ethnicity in Polk County, IA in 2020
Total Population:
Population By Race in Polk , IA in 2020
Race Population Percentage
Black or African American Alone 36,053 7.31%
White Alone 416,656 84.51%
American Indian and Alaska Native Alone 1,893 0.38%
Asian Alone 25,335 5.14%
Native Hawaiian And Pacific Islander Alone 318 0.07%
Two Or More Races 12,767 2.59%
Population By Ethnicity in Polk , IA in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 1,106 0.22%
White Alone - Hispanic 44,058 8.94%
American Indian and Alaska Native Alone - Hispanic 1,197 0.24%
Asian Alone - Hispanic 248 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 121 0.03%
Two Or More Races - Hispanic 1,337 0.27%
Black or African American Alone - Non Hispanic 34,947 7.09%
White Alone - Non Hispanic 372,598 75.57%
American Indian and Alaska Native Alone - Non Hispanic 696 0.14%
Asian Alone - Non Hispanic 25,087 5.09%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 197 0.04%
Two Or More Races - Non Hispanic 11,430 2.32%